Pope Benedict XVI greets faithful as he arrives in St. Peter's square at the Vatican, Sunday Oct. 15, 2006 for the canonization ceremony of Mother Theodore Guerin, a French-born nun who struggled in the 19th century in the American frontier land, Rafael Guizar Valencia, a Mexican Bishop whose dead body reportedly did not decay and two Italians, Rosa Venerini, who pushed for education for girls and Filippo Smaldone, an Italian priest who worked with the deaf. (AP Photo/Alessandra Tarantino)